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13) a scatter plot of the u.s. national debt from 2001 to 2016, includi…

Question

  1. a scatter plot of the u.s. national debt from 2001 to 2016, including a linear e

which statement correctly interprets the scatter plot?
a. the scatter plot shows a weak positive correlation.
b. the scatter plot shows a strong positive correlation.
c. the scatterplot shows a strong negative correlation.
d. there is no correlation shown on the scatter plot.

  1. késhaun conducted an experiment using a toy car and ramps of various heights. he measured the distance,y, in centimeters (cm), the toy car traveled from the end of the ramp. he also recorded the height, x in inches (in), of the ramp.

he found that when the ramp height was 15 in, the toy car traveled 72 cm. when the ramp height was 24 in, the toy car traveled 108 cm.

Explanation:

Brief Explanations

Positive correlation means as one variable increases, the other variable also increases. In the scatter - plot of U.S. National Debt over years, as the years since 2000 increase, the U.S. National Debt (in trillions of dollars) also increases. The points are closely clustered around the linear trend line, indicating a strong relationship. So, it shows a strong positive correlation.

Answer:

B. The scatter plot shows a strong positive correlation.